Power take-off device



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v x Y "POWER TAKE-OFF DEVICE A Filed Nov. 29, 1929 l 2' sheets-sheet 1 Inventor A Homey Nov. 22, 1932. a. NASTROM 1,888,513

POWER TAKE-FF DEVICE Filed Nov. 29,' 1929 2 Sheets-sheet 2 I ISL/@MMM A omey InventorA Patented Nov. 22, 1932 UNITEDl STATES BROR NASTROM, OF HOLDREGE, NEBRASKA i POWER 'rnnnsorrnnvrcn Application led November 29, 1929. Serial lo. 410,4S8.

general rule, the automobile is stripped of the y body and the engine is placed on appropriate supporting means. There are various ways of attaching different kinds of power take-off devices. For instance, some devices are .l coupled in the differential at the rear end of the propeller shaft. Other devices are attached to the axle. ln some instances, the power take-off device is coupled to the crank shaft in front of the engine,and in other instances, the power take-off device is embodied in the universal joint just rear of the transmission.

lThe present form of the device is especially, but not necessarily, constructed to permit it to be fastened to the universal joint to take the place of the propeller shaft and this device is constructed to provide a housing for roller bearings wherein the roller bearings are arranged to accommodate a rotating shaft wherein the shaft is provided with means for detachable mounting of the various appliances adapted to transmit the power. These devices are generally in the form of a gear, pulley, or the like.

In the drawings:

Figure l is a longitudinal sectional view through a structure devised in accordance with the present invention.

Figure 2 is an end view of the same observing the details in the direction from right to left in Figure 1.

Figure 3 is a view looking at the opposite end of the structure, that is, observing it in a direction from left to right in Figure 1.

Figure 4 is a cross section taken on the line 4.-4 of Figure 1. l

The entire assembly may well he seen by examining Figure l, wherein it will be observed that the reference numeral 5 designates the power-takeoff shaft. This ispreferably constructed with a polygonal portion 6` at one end which may be vconveniently coupled'bya socket or the llike (not shown), to the main source' of power. The opposite l end portion is tapered as at 7 and terminates in the reduced screw-threadedterminal 8. A hub 9 is keyed on this` tapered end portion and is providedV with an outstanding flange 10 to which the different appliances (notl shown) may be bolted or otherwise fastened. The hub is also formed with screw threads as at 11 to accommodate a retaining nut for the appliance (not shown).

The reference character 12 designates a washer and 13 a retaining nutfand 14A a retaining pin. Interposed between the flange 10 and the shoulder forming collar 15 is the bearing housing. Incidently, the collar 15 is held in place by a set screwY 1.6. The housing comprises atuhularcasingl? formed at one end with a fconcaved portion 18 equipped with an attaching flange 19. It might be stated here that this particular flange was primarily designe-d to permit'it to be fastened to the universal joint in the Vmodel T Ford engine.

In other words, in accordance with the invention and existing rear half of the universal joint is removed and the fiange 19 is substituted therefor thus permitting the couplin@f between the engine crank shaft (not shown) and the shaft 5 to be conveniently made without requiring further alterations in the stock part. The numeral 20 merely designates an oil cup.

Vithin the housing is a bushing 21 surrounded by an assembly of roller bearings designated by the numeral 22. Interposed between the roller bearings at the left hand end of the aforesaid collar 15 is a suitable thrust bearing generally designated at 2.3.

The gist of the invention it will be understood, is in the provision of a relatively stationary housing including appropriate bear-v and thrust means to accommodate the shaft 5. The shaft 5 being constructedy at the end 6 to permit it to be conveniently fastened to the engine shaft (not shown) and the opposite portion being equipped with ka hub `structure which permits detachable 1 3 garded as unnecessary.

placement of the diiferent appliances thereon for transmitting the power. As before stated, these appliances may be in the nature of pulleys, gears, sprocket wheels or the like. In thisl way, the farmer may employ readily lobtainable parts for application to this particular device so that it is of a variable' and diversiied'character.

A. careful consideration of the description 1@ inv connection with the drawings Will enable the reader to obtain a clear understanding of the construction, the assembly, the features and advantages and the method of operation. l" Therefore,a more lengthy description is re- `Minor changes in shape, size and-materials and ne-.arrangement of details coming within'tl-ie field of linvention claimed may be 'resorted -to in actual practice if desired. Y

5o. Iclaim: Y

A power take-oil' device comprising a bearing structure including a housing, a rollerfbearing assembly therein and. a thrust bearing fin the inner end of the assem- 23 bly, a shaftl rotatably arranged in said bearing structure and having its ends projecting therefrom, :a collar adjiustably connected with the shaft adjacent its inner end f and engaging a part of the thrust. bearing,

30 a hub spinning :on the outer end of the sli-aft said hub havin-g an apertured flange on its. inner end formed with an annular flange engagging. vthe outer end of the housing of they bea-ring structure.

Intestimony whereofl aix my signature.

' BROR NASTRQM. 

